Is InvoiceNinja using the newer APIs for Google sign-in? Google is deprecating the old sign-in using the Google Plus API and replacing it with Google Sign-In! (https://developers.google.com/identity/sign-in/web/quick-migration-guide has the details about the stuff that needs to be changed).
I got an email from google that they are going to progressively start failing the deprecated APIs and will completely shut them down on March 7th, 2019.
So are these changes implemented already?